Metal-working machine.



L. A. HAWTHORNE.

METAL WORKING MACHINE.

APPLICATION FILED MAY I6. I9I4.

Iafened Sept. 25, 191?.

3 SHEETS-SHEET I.

n O Irlll A TTORVEY@ L. A. HAWTHORNE.

METAL WORKING MACHINE.

APPLICATION man MA1/16.1914.

Patented Sept. 25, 191?.

3 SHEETS-SHEET 2.

L. A. HAWTHORNE.

METAL WORKNG MACHINE.

APPLICATION HLED MAY|6.1914.

Patented Sept. 25, 1917.

3 SHEETS-SHEET 3.

UNTTE@ STATES PATENT FFTCE.

LOUIS A. HAWTHORNE, 0F NEWARK, NEIN JERSEY, ASSIGNOR TO STEEL UTILITIES,

INCORPORATED, A CORPORATION OF NEW YORK.

METAL-WORKING MACHINE.

Application led May 16, 1914.

To all whom t may concern:

Be it known that l, Louis A.. HAWTHORNE,

a citizen of the United States, residing at Newark, N. J., have madecertain new and useful Improvements in Metal-Working Machines, of whichthe following is a specication.

T he invention relates to machines for punching structural shapes andother work, and in certain of its aspects the invention relates to thepunching of shape flanges and like work. Various objects and advantagesof the invention will be set forth in part hereinafter, and in part willbe obvious herefrom, or may be learned by practice with the invention.

The invention consists in the novel parts, constructions, combinationsand improvements herein shown and described.

The accompanying drawings, referred to herein and forming a part hereofillustrate one embodiment of the invention, and together with thedescription serve to explain the principles thereof.

Of the drawings: l

Figure 1 is a side elevation, with parts broken away and with parts insection, of a machine embodying the invention;

Fig. 2 is a top plan of the machine of Fig. 1, with parts of the casingbroken away;

Fig. 3 is a section on the line A-B of Fig. 2, looking in the directionof the ar-y rows, with parts omitted;

Fig. 4 is a vertical section on the line C-D of Fig. 1 looking in thedirection of the arrows.

Fig. 5 is a horizontal section on the line G-M of Fig. 3 looking in thedirection of the arrows.

Fig. 6 is a vertical section on the line E-F of Fig. 1 looking in thedirection of the arrows;

Fig. 7 is a fragmentary sectional view on an enlarged scale of the lowercentral partv of Fig. 6;

Fig. 8 is a bottom plan in detail of the adjusting nut of Fig. 7; p

Fig. 9 is a detail elevation of the punch actuating lever arm;

Fig. 10 is a detail of the die blocks;

Fig. 11 is a sectional detail on an enlarged scale of the lower centralpart of Fig. 1, showing the springs under compression; and

Fig. 12 is a similar view to Fig. 11, but

Specification of Letters Patent.

Patented Sept. 25, 1917.

serial No. 838,954..

showing the springs extended and the frame at its stop.

Referring by way of example to the illustrated embodiment of theinvention, and in accordance with certain features of the invention, itis especially adapted and designed to punch beam flanges, and asembodied the machine is shown especially adapted to punchsimultaneously, and symmetrically both ianges of an I-beam. The beam isrun through the machine, and stopped from time to time and after thedesired amount of travel, to be punched in the proper and desiredpositions for the rivet holes, to be used in fabrication.

So far as concerns many features of the invention, any desired form oftraveling and stopping means may be utilized. As embodied, said meanscomprise devices for impellng the beam or shape forward, said devicesacting either continuously or intermittently, in cooperation andconjunction with distance determining devices, manually settable orautomatically controlled from a distance record sheet, there beingconnections from the distance determining means to the beam or shapewhereby it is successively permitted to travel distances correspondingto the successive settings of the distance determining devices.

The beam or shape a; rests upon driven rolls 1, driven eithercontinuously or intermittently in harmony with the successive settingsof the distance determining means and the successive punchings of thebeam. The forward end of the beam abuts upon a head 2 (Figs. 1 and 9.),which head is attached to a long bar or rail 3 extending horizontallybackwardly along the shape ac. The rail 3 is connected to the distancedetermining means, not shown herein, but which may be substantially likethat shown and described in copending application Serial No. 814,380,filed January 26, 1914, or in coe pending application Serial No.842,231, led June 1, 1914', and need not be shown and described indetail herein.

In accordance with certain features of the invention, means are providedfor clamping or firmly holding the beam iianges for punching andalternately freeing them to be fed forward between the succesivepunches, and in connection therewith means for simultaneously punchingboth anges of the beam, and making such punching symmetrical, with asingle punch or a plurality thereof on each side, and in accordance withone feature 4`of the invention single actuating means for operating thepunches for lboth flanges are provided.

The embodied form of actuating means comprises devices for operating thepunch after the shape 'has been brought to rest and for preventinganother operation thereof until the shape has been traveled and stoppedfor the successive punching operations thereon. Suitable driving means,vsuch as an electric motor, are connected lto a shaft .10 havingjournals 11 in the machine frame, said shaft carrying a Vfly-wheel 112.vvFixed to shaft 1G is a pinion 13 in mesh with a vgear 14. The gear 14is loosely sleeved upon a shaft 15 having journals 16 carried upon themachine frame. Fixed to the gear v14 is a clutch member 17. rlhecorrespondv.ing or coperating clutch member 18 fis splined'to the shaft15, and is iinpelled into engagement with the cooperating 'clutch member17 by a spring 19 in compression between clutch member 18and a suitablehead or washer '20. ln the external face iof the member 18 is a camgroove 21, in which works a cam finger 22. The cam finger or pin 22connectsto the core of a solenoid :23. A spring k24 acts to press thecam pin22into thefgroove '21, the solenoid when .energized acting`against the springf24 to retract the finger or pin 22 out of the groove21. :Formed in shaft 15 `between .its journal bearings 16 is a doublecrank 25 having Va connecting rod A26. Said connecting irod is pivotallyconnected to a wrist pin 27, 'which wrist pin is mounted in a lever arm128. Said lever `arm l28 has pivotal mounting as by supporting shaft 29upon a sliding frame 30. Said frame-30 is slidable in yguides32 upon the'bed plate 31, and movable to and from 'a positioning stop 33 upon the-bed plate, with which stop a piece 34 on -the frame 30 contacts.

Slidably mounted in the frame30 isfa xreciprocable head l36 reciprocablymounted in guides 37 and 38 formed in each side'ofl'the vertical wallsof the slidable frame 30. Pivotally connected to the rear part ofthereciprocable head 36, by means of a pivot Ipin 39, is a flatconnecting rod or plate 40, having a bearing head 41 mounted in a socket42 inthe upper end of the lever 28. The punches 43 and 47 for one of the'beam flanges are operated bythe head 36, andthe punches are relativelymovable with respect to each other for the purpose of punching beams ofdifferent sizes, their movements for this'purpose in the presentarrangement hing to and fro vertically, this being effected bvmeans'hereina fter to beldescribed. Thepunch 43 is reciprocably mountedin y'a ed to receive-the Vlower portion of the beam flange, and isshaped to accommodate between it and carrier 44the horizontally eX-tended 'web-of the beam. Carrier 48'iisf-likej wise 'vertically movableon guides 54.1onathe frame30.4

The fupper carrier 44 iis formed with la downwardly projecting portion50 adapted to come within the beam flange and to lbe pressed 'firmlythereagainst during the punching. The die .51 for the punch V43 isformed lin the part 50 of the block. or carrier 44. The block or carrier48 has a similar part '52 extending upwardly and behind the other partof the ybeam flange, Iand adapted to press thereagainst during thepunching, said part 52 carrying the die-53 for the punch 47. v

The blocksor punch supports 44 land 48, as stated, are both movable-toand fro vertically on guides 54,l andare so -inovable 'relatively to-each other by. means hereinafter to be :described to properly position'the punches for beams of dierent sizes and also for-the purpose ofsymmetrically locating the4 punches on both 'sides with respect to theweb of the beam or shape.

Thepunches are detachably mounted `with respect tothe head 36, and asembodied the heads 42 'of the punches 43 and 47 are flocated in a recessvformed partly in the :forward end oftheihead 36,*and formed partlywithin `a detachable holder 61, having a tongue and groove slidingyconnection 62 with the forward end ofthe head 36, and being held toposition by suitable means such asa tap bolt or lag bolt 63.

Means are provided by the invention for selectively operating. one ormore'of the punches, and as embodied herein, gags 64 cores of solenoids67,1electrically controlled from the distance recordsheet. Springs 68serve to restore'the gags when the solenoids 67vare denergized.

In accordance with certain features of'the invention,means are providedfor simultaneously punching both flanges of the beam, and in theembodied form of such means, there is provided a sliding frame 80,carried in guides 81 upon the bed plates 31 of the machine.

Mounted reciprocably upon said sliding frame 80 is a reciprocable head82, carrying punches 83 and 84 for punching the opposite flange of theshape or beam The connections for operating togetherfthe heads 36 and 82comprise a longitudinally sliding rod 85, said rod 85 being mounted uponsupporting blocks 86 and 87, on the bed plate of the machine. Blocks 86and 87 reciprocate, respectively, on guide ways 88 and 89 formed in thebed plate. Extending from the block 86 are pivot pins 90 and 91,pivotally mounted on which pins are blocks 92 and 93. The lower portionof the lever arm 28, below the wrist pin 27 is bifurcated into parts 94Cand 95, each of said parts being yoked or recessed to straddle andengage the pivoted blocks 92 and 93.

On the opposite side of the machine, a lever arm 100 has its lower end101 bifurcated and yoked similarly to the lower end of lever arm 28, toembrace and engage blocks 102, pivotally mounted on pins 103 carried bysliding block 87 (near the right hand end of rod 85 in Fig. 1).

Arm or lever 100 has a pivotal bearing on pin or shaft 104:, which ismounted on the slidable frame 80. A, link 105, similar to link 40, ispivotally connected to reciprocable head 82 and has a pivotal soclretconnection with arm 100. The head 82 carries two punches 106 and 107,which are mounted in the same way, and have the same movements andrelative movements as the punches L13 and 47, and therefore need not bedescribed in detail. The punches 106 and 107 are reciprocably mounted,respectively, in carriers 108 and 109. Said carriers 108 and 109 work onvertical guides on frame 80, similar to the guides 54; on frame 30. Saidcarriers are movable to and fro vertically on said guides, and also arevertically movable relatively to each other to get the right amount ofseparation between the punches 106 and 107, and also to get both punchesat the right height for beams or shapes of different sizes.

rllhe block 108 has a recess for the upper` half of the beam liange, asappears from Fig, 1, and it has a part 110 extending downwardly behindthe beam fla-nge, and adapted to press tightly against the inner face ofthe flange during the punching operation. The block 109 is similarlyrecessed to receive the lower part of the beam or shape flange. Thebloclr 109 has a part 111L extending upwardly behind the lower part ofthe beam flange, and likewise adapted to press against the inner face ofthe flange during the punching operation. rlhe parts 110 and 111 havedies therein, and suitable discharging ducts for the punchings as shownin F ig. 10.

Means are provided by the invention for increasing and decreasing thespace or cegree of separation between the punches and dies for oneflange of the beam and those for the other flange, to accommodate beamsof different sizes. As embodied, the shaft 85 is made rotatable for thispurpose, and by such rotation the slidable frames 30 and 80 are drawntogether for smaller beams or are moved apart for larger beams. Theshaft 85 has also, in the present embodiment, reciprocatory longitudinalmovement during the punching operation to bring the die blocks up tightagainst the inside of the flanges of the beam. Encircling shaft 85,medially of its length, is a sleeve 120, splined to rotate with shaft 85but permitting relative slidablemovement of the sleeve 120 and shaft 85.The sleeve 120 has on its exterior a screw thread 121 and encircling thescrew thread 121 is a nut 122. Fixed to nut 122 are apertured wings 123,and through the apertures pass rods 124-, said rods 124 being fixed to asupport 126 on the machine frame. @n the ends of rods 124,- are nuts127, and springs 128 are in compression between the wings 123'and nuts127. Sleeve 120 has an annular groove 130, with which groove engages aflange 131 fixed to slidable frame 80.

The end of the shaft 85 is held against longitudinal movement relativelyto the sliding block 86, at the left in Fig. 1, by collars 112 and 113fixed to the shaft at either side of the block. The slidable block 87(at the right in Fig. 1) is apertured internally longitudinally thereof,said aperture being screw threaded to engage an external screw thread114C on that portion of shaft 85. The shaft 85 has a journal bearing 132at the right hand end in Fig. 1, and is thus rotatably journaled inbearing 132 and in the slidable blocks 86 and 87. Suitable means areprovided for rotating the shaft 85, such as a hand wheel 133, althoughthis could be effected automatically from a distance record sheet, or byother suitable means.

rlhe manner of operation of the mechanism so far described, is`substantially as follows ylfhe beam or shaper ai is traveled and stoppedin accordance with the setting of the distance determining means, orbythe indications of the distance record sheet, or in other suitablemanner so far as concerns many aspects of the invention. Vlhe clutch 17,18 is released by the withdrawal of pin 22, by the solenoid 23 orotherwise. rlhis permits the shaft 1.5 to make one rotation,

the inside of the other flange.

as the retracted ypin 22 is.- released to enter the broad part of groove21 and cam the rotating clutch member 18 against its spring and to holdit out until the pin 22 is again retracted.

When the shaft 15 begins to rotate, the arm 28 is rocked about 29 tobring the punches 43 and 47 against the beam flange (Fig. 1) vand theshaft 85 is moved slightly to the left (Fig. 1) to rock arm 100 about104 to bring the punches 106 and 107 against 1 the other flange. As theshaft 15 continues `its rotation, arm 28 rocks next about its A whichlater expand 'to restore the clearance between the beam flange and thedie blocks 110 and 111.

The die blocks pressing firmly on the inside of the flanges stop themovement of frames 30 and 80, and the arms 28 and 100 again pivot,respectively about 29 and 104, and the heads 36 and 82 are forcedforward driving the punches through the flanges. As the shaft 15continues to rotate, the punches are withdrawn, the frames 30 and 80move toward the center, easing the die blocks away from the flanges andleaving the beam free to be fed forward andto be positioned for the nextpunching. The springs 128 serve to move frame 80 and'ease its die blocksaway from the inner flange of the beam.

Means are provided by the invention for automatically centering thepunches for shapes of different sizes, so as to bring the openings inand between the die blocks or die carriers into alinement with theflanges and web of the beam or shape as it is fed in and traveled alongupon the rollers 1. In accordance with one feature of the invention, thedie blocks are automatically positioned by the fed in shape. In theembodied form, a shoe 140, has its end turned or flared upwardly in thedirection of the approaching beam, as shown in Fig. 4. The shoe 140 isslidable to and fro vertically in guides 141 and 142 on the machineframe. Extending upwardly from the shoe 140 is a rod 143, pivotallyconnected at 147 to a lever 144. Lever 144 is pivotally supported at 146within a double bracket 145 upon theVV top ofthe sliding frame30.Midwaybetween pivotpoints 146 and 147 is a pivotal support ticalmovement of said rod 149 will be one half that of the shoe 140, when theshoe is moved by engagement with the edge of the flange of a beam orshape. Thus the horizontal opening between the support 44 for' the upperpunch and die and the support 48 for the lowerpunch and die will becorrectly positioned to receive the web of the beam and to give theproper desired position of the holes in the flange.

Means are provided by the invention for simultaneously positioning thepunch and die blocks for'both'flanges of the beam, and as embodied, asimilar mechanism is provided for the other side of the machine,and itis operated simultaneously from the shoe 140. For this purpose, asembodied, a square shaft 150 is fixed to lever 144 at its pivotalbearing 146, said shaft 150 extending-horizontally and having a sleevedor bushed bearing in a bracket 151 mounted on'the top of the slidingframe 80. The bracket 151 is double, and between the two parts thereofis carried lever 152, like lever 144 by a pivotal bearing 153. The lever152 is squared to lit shaft 150, while the lever and its lbracket 151are slidable along shaft 150 with the sliding frame 80v to accommodatebeams of varying size.

Pivotally supported from'lever 152 is a rod 154 distant from pivot point158 by the same amount that pivot support for rod 149 is from thepivotal support 146 for llever y144. 'Supported on rod 154 are thecarriers 108 and 109 for the punches anddies for the opposite flange ofthe beam, already described as being vertically slidable in guides onsliding frame 80. Thus, these punches and dies are likewise centeredfrom shoe 140 for the horizontally disposed web of the beam, as thelevers 144 and 152 will rock together, while lever 152 is at the sametime movable longitudinally of the shaft 150 with the frame 80. Thelever arms 14,4'and k152 extend backwardly from their pivot points tosupport counterweights 156 for balancing lthe weight of the punch anddie carriers 44,

48, 108 and 109, 'thereby rendering the up and down movement thereofeasier.

Means are provided by the invention for increasing or decreasing thedistance between the punches. for a beam flange on one side of the weband those for said flange on the other side of the web. In practice therivet holes are spaced apart variably with the differences in the widthof the tread'of the flange. In the embodied form of such means, the rod149 is screw threaded into the punch and die carriers 44 and 48 by rightand left handed screw threads, respectively, as shown in Fig. 6, wherebywhen rod 149 is rotated the carriers 44 and 48 are moved toward or apartfrom each other. F or this purpose rod 149 is rotatably supported in itspivotal support 148, as shown at the top of Fig. 4, the piece 148 beingpivotally mounted in the lever 144, and the rod 149 having a rotatablebearing in the piece 148, and being held in position by a nut 170.

A like arrangement is provided for the rod 154, which likewise has rightand left hand screw thread connection with the punch and die carriers108 and 109. The rod 154 has likewise rotatable mounting in its pivotalbearing, similar to the rod 149, all of which need not be furtherdescribed in detail.

Means are provided for rotating said rods 149 and 154 together, and asembodied each of said rods 149 and 154 carries splined thereonrespectively a pinion 174, mounted in a bracket 175, which brackets arecarried upon the corresponding sliding frame 30 or 80. The pinion 174has either helical or worm teeth. A shaft 176 extends horizontally pastthe respective pinions 174, said shaft having bearings in the brackets145 and 151 and being also journaled in a bearing 177 carried by theslidable frame 80. Suitable means such as collars 178 and 179 serve tokeep the shaft 176 from longitudinal movement. The shaft 17 6 is squareor splined to carry worm er gear wheels 180, which mesh with the pinions.174. Thus the gear wheels 180 remain in mesh with the pinions 174, torotate the rods 149 and 154 with the rotation of the shaft 176, whilegears 180 and the shaft 176 are relatively slidable during the movementsof the sliding frames and 80. Suitable means for rotating the shaft 176are provided, shown herein as a hand Wheel 182', although so far asconcerns many features of the invention, other means for controlling therotation of the shaft 176 may be provided controlled from the setting ofa distance determining device or from an automatic distance recordsheet.

Means are provided by the invention for vertically moving or adjustingthe lower punch and die carriers 48 and 109 to regulato or vary thedistance of the lowermost rivet hole from the bottom edge of the beamliange, said means cooperating with the means for adjusting orregulating the spacing apart of the rivet holes for either side of thebeam web. As embodied (see Figs. 6, 7 and 8), the lower end of the rods149 and 154 extend into apertures 188 in the lower portion of thecarriers 48 and 109. rEhe lower end of said rods have square portions184 tting within internally square sleeves 185. Said sleeves 185 areexternally threaded as shown at 186. The thread 186 engages the internalor tapped thread of a nut 187' fixed in the lower part of the respectivecarriers 48 and 109 by suitable means such as a set screw 188. Thus whenthe rods 149 and 154 are rotated, the nuts 187 and the correspondingcarriers 48 and 109 travel upwardly and downwardly, as the sleeve 185rests upon a seat 190 formed in the machine frame.

The manner of operation of the mechanisms shown and described will beclearly understood from the descriptions or statements of operationalready given in connection with the various groups of mechanism, andfurther description will be unnecessary.

From all the foregoing it will be understood that a machine has beenprovided embodying and realizing the objects and advantages herein setforth, together with other objects and advantages. lt will also beunderstood that changes may be made from the mechanisms shown anddescribed within the scope i of the accompanying plans, withoutdeparting from the principles of the invention and without sacricing itschief advantage.

What l claim as my invention and desire to secure by Letters Patent, is

1. A punching machine including in combination a slidable punch and diecarrying frame adapted to receive a beam flange, an opposed punch anddie carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said slidable frames,actuating levers connected to said slidable frames and to said punchactuating devices.

2. A punching machine including in combination a slidable punch and diecarrying frame adapted to receive a beam flange, an opposed punch anddie carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said slidable frames,actuating levers connected to said slidable frames and to said punchactuating devices and connections between said levers.

8. A punchin machine including in combination a slida `le punch and diecarrying frame adapted to receive a beam flange, an opposed punch anddie carrying frame adapted to receive the other flange of the beam,movable' punch actuating devices mounted on said slidable frames,actuating levers pivoted upon said slidable frames and to said punchactuating devices and connections between said levers.

4. A punching machine including in com-l bination a slidable punchy anddie carrying frame adapted to receive a beam flange, an opposed punchand die carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said slidable frames,actuating ylevers connected to said slidable frames and able punchactuating device, an actuating lever' pivoted at one of its ends to theother sliding frame and connected at a medial pointl to thecorresponding movable punch actuating device. 4

6. A punching machine including in combination a slidable punch and diecarrying frame adapted to receive a beam flange, an

,opposed punch and die carrying frame adapted to receive the otherflange of the beam, movable punch actuating devices mounted cn saidslidable frames, an actuating lever pivoted to one of said'slidingframes at a medial point and connected at one of its ends tothecorresponding movable punch actuating device, an actuating lever pivotedat one of its ends to the other sliding frame and connected at a medialpoint to the corresponding movable punch actuating device, and means formoving said levers together.

7. A punching machine including in combination a slidable punch anddie'carrying frame adapted to receive a beam flange, an opposed punchand die carrying frame adapted'tovreceive the other flange of the beam,movable punch actuating devices mounted on said slidable frames, anactuating lever pivotedv to one of said sliding frames at a medial pointand connected at one of its ends to the corresponding movable punchactuating device, an actuating lever pivoted at one of its ends to theother slidingframeand connected'at a medial point to the correspondingmovable punch actuating device and connections between the free ends ofsaid'two levers.

8. A punching machine including in combination a slidable punch `and diecarrying frame adapted to receive a beam flange, an

opposed punch and die carrying frame adapted to receive the other Harigeof the beam, movable punch actuating devices mounted on said slidableframes, actuating levers connected to said slidable frames and tolsaidpunch actuating devices and common actuating means for said levers.

9; A punching machine-including in com-1 bination a, slidable punch`and-die carrying.

frame kadapted to receive Va beam flange, anv

opposed punch and'v die carrying frame adapted to receive theotherflange of` the beam, movable punch actuating devices, mounted on saidslidable frames, actuating levers pivoted upon saidslidable frames andto said punch actuatingdevices and commonv beam, movable punch actuatingdevices' mounted on said slidable frames, an actuating lever pivoted toone of said sliding frames at a medial point and connected at one of itsends tothe corresponding movable punch actuating device, an actuatinglever pivoted at one of its ends to the other slid-l ing frame andconnected at a medial point to the corresponding movable punch actuatingdevice and common actuating means for said levers.

11. A punching machine including in combination a slidable punch and,die carrying frame adapted to receive a beam flange, an opposed punchand die carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said slidable frames,actuating levers connected to said slidable 'frames and to said punchactuating devices and a crank shaftfor actuating said levers.

12. A punching machinev including in combination a slidable punch anddie carrying frame adapted to receive a beam flange` an opposed punchand die carrying frame adapted to receive the other flange of the beam,movable Ypunch actuating devices mounted on said slidable frames, anactuating lever pivoted to one of said sliding frames at a medial pointandy connected at one of its ends tothe corresponding movable punchactuating device, an actuating lever pivoted at one of its ends totheother sliding frame and connected at a medial point to the correspondingmovable punch actuating device, and a crank shaft for actuating saidlevers.

13. A punching machine including in combination a slidable punch and diecarrying frame Aadapted to receive a .beami flange an opposed punch anddie carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said slidable frames, anactuating lever pivoted to one of said sliding frames at a medial pointand connected at one of its ends to the corresponding movable punchactuating device, an actuating lever pivoted at one of its ends to theother sliding frame and connected at a medial point to the correspondingmovable punch actuating device, a crank shaft for actuating said levers,and means for causing a single rotation of said crank shaft.

15. A punching machine including in combination a slidable punch anddie' carrying frame adapted to receive a beam flange, an opposed punchand die carrying frame adapted to receivey the other flange of thebea-m, movable punch actuating devices mounted on said slidable frames,actuating levers connected to said slidable frames and to said punchactuating devices and means for causing a single actuation of saidlevers.

16. A punching machine including in combination a slidable punch and diecarrying frame adapted to receive a beam flange, an opposed punch anddie carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said slidable frames, anactuating lever pivoted to onev of said sliding frames at a medial pointand connected at one of its ends to the corresponding movable punchactuating device, an actuating lever pivoted at one of its ends to theother sliding frame and connected at a lmedial point to thecorresponding movable punch actuating device and means for causing asingle actuation of said levers.

17. i punching machine including in combination a slidable punch and diecarrying frame adapted to receive a beam flange, an opposed punch anddie carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said slidable frames,actuating levers connected to said slidable frames and to said punchactuating devices and common actuating -means for said levers forimparting a single actuation to said punches.

18. A lpunching machine including in combination a slidable punch anddie carrying frame adapted to receive a beam flange, an opposed punchand die carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said slidable frames, anactuating lever pivoted to one of said sliding frames at a medial pointand connected at one of its ends to the corresponding movable punchactuating device, an actuating lever pivoted at one of its ends to theother sliding frame and connected at a medial point to the correspondingmovable punch actuating device, and common actuating means for saidlevers for imparting a single actuation to said punches.

19. A punching machine including in combination a slidable punch and diecarryn ing frame adapted to receive a beam flange, an opposed punch anddie carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said slidable frames,actuating levers connected to said slidable frames and to said punchactuating devices, a crank shaft for actuating said levers andconnections betvveen the free ends of said levers.

20. A punching machine including in combination a slidable punch and diecarrying frame adapted to receive a beam flange, an opposed punch anddie carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said slidable frames, anactuating lever pivoted to one of said sliding frames at a medial pointand connected at one of its ends to the corresponding movable punchactuating device, an actuating lever pivoted at one of its ends to theother sliding frame and connected at amedial point to the correspondingmovable punch actuating device, a crank shaft for actuating said leversand connections between the free ends of said levers.

21. A punching machine including in combination a slidable punch and diecarrying frame adapted to receive a beam flange, an opposed punch anddie carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said slidable frames,actuating levers connected to said slidable frames and to said punchactuating devices and means for successively traveling and stopping abeam relatively to the punching means.

A punching machine including in combination a slidable punch and diecarrying frame adapted to receive a beam flange, an opposed punch anddie carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said slidable frames,actuating levers connected to saidslidable frames and to said punchactuating devices and means for successively traveling and stopping abeam relatively to the punching means and means for automaticallycentering the flange receiving devices for beams of' different sizes. v

23. A punching machine including in combination a slidable punch and diecarrying frame adapted to receive a beam flange, an opposed punch anddie carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted 0n Said slidable frames',actuating lli) levers connected to said slidable frames and to saidpunch actuating devices, means for successively traveling and stopping abeam relatively to the punching means and means y controlledyautomatically by the beam for centering the liange receiving devices forbeams of' different sizes.

Q4. A punching machine including in` combination a slidable punch anddie carrying Vframe adapted to receive a beam flange, an opposed punchand die carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said lslidable frames,actuating levers connected to said slidable frames and to said punchactuating devices, means for successively traveling and stopping a beamrelatively to the punchingmeans andv means for automatically centeringthe punches and dies for beams of different sizes.

25. A punching machine including vin combination a slidable punch anddie carrying frame adapted to receive a beam flange an o osed unch anddie carr ino'y frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said slidable frames, ac-

ating lever pivoted to one of said sliding frames at a medial point andconnected at one of its ends to the corresponding movable punchactuating device, an actuating lever pivoted at one of its ends to theother sliding frame and connected at a medial point to the correspondingmovable punch actuating device, means for successively traveling andstopping a beam relatively-to the punching means andmeans controlledautomatically by the beam Afor centering the punches and dies for beamsof different sizes.

27.. A punching machine including in combination a slidable punch anddie carrying frame adapted to receive a beam flange, an opposed punchand die carrying frame adapted to receive the. other ange of the beam,movable punch actuating devices mounted on said slidable frames,actuating levers connected to Said slidable-frames and to saidpunchactuating devices means for supporting abeamto be punched and meansbeam, movable punch actuating devices mounted on said .slidable frames,actuating levers connected to said slidable frames and.' to said punchactuating devices, means con-y trolled by the size of the beam forsupporting a beam to be punched and means for centering the flangereceiving devices for beams of different sizes.

29. A punching machine including in combination a slidable punch and diecarry-k ing frame adapted to receive a beamflange, an opposed punch anddie carrying frame adapted to receive the other flange of the` beam,movable punch actuatingv devices' mounted on said slidable frames, anactuating lever pivotedv to one. of said sliding' frames at a medialpoint and connected at one of its ends to the corresponding movablepunch actuating device, an actuating'l lever pivoted' atone of its endsto the other sliding frame and connected. at a medial point to thecorresponding movable punch actuating device, means for. supporting abeam to be punched and means for centering the flange receiving devicesfor .beams ofy diEerent sizes.

30. A punching machineincluding in combination a slidable punch and diecarrying frame adapted to receive a beam flange, an opposed punch anddie carrying frame adapted to receive the other flange ofthe beam,vmovable ypunch actuating devices mounted on said slidable frames,actuating levers pivoted upon said slidable frames and to said punchactuating devices, means controlled by the size of the beam' forlsupporting a beam to be punched and means for centering thel flangereceiving devices for beams of different sizes. f

3l. A punching machine including in combination a slidable punch and diecarrying frame adapted to receive a beam flange,

an opposedpunch and die carrying frame adapted'to receive the otherflange of the beam, movable punch actuating devicesv mounted on saidslidable frames, actuatin#r leversy pivoted upon said slidable framesand toA said punch actuating devices, means controlled automatically bythe size of the beam for supporting a beam to be punched;

and means for centering the flange receiving devices for beams ofdifferent sizes.

`82. A punching machine includ-ing in combination a slidable punch anddie carrying frame adapted'to receive, al beam flange,A

an opposed; punch; andi diecarlying; frame iis adapted to receive theother-:flange of the beam, movable punch actuatingr devices mounted konsaid slidable frames, actuating levers connected to said slidable framesand to said punch actuating devices, means for supporting a beam to bepunched and means for centering the punches and dies for beams ofdifferent sizes.

33. A punching machine including in combination a slidable punch and diecarrying frame adapted to receive a beam flange, an opposed punch anddie carrying frame adapted to receive the other `flange of the beam,movable punch actuating devices mounted on said slidable frames,actuating levers connected to said slidable frames and to said punchactuatingl devices, means controlled by the size of the beams forsupporting a beam to be punched and means for centering` the punches anddies for beams of' different sizes. v

34. A punching machine including in combination a slidable punch and diecarto receive a beam flange, an opposed punch and die carrying frameadapted to receive the other flange of the beam, movable punch actuatingdevices mounted on said slidable frames, actuating levers connected tosaid slidable y:frames and to said punch actuating devices, meanscontrolled automatically by the size ofthe beams for supporting a beamto be punched and means for centering the punches and dies for beamsv ofdifferent sizes.

35. A punching machine including in combination a slidable punch and diecarrying frame adapted to receive a beam flange, an opposed punch anddie carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said slidable frames, anactuating lever pivoted to one of said sliding frames at a medialpoint-and connected at one of its ends to the corresponding movablepunch actuating device, an 'actuating lever pivoted at one of its endsto the other sliding frame and connected at a medial point to thecorresponding movable punch actuating device, means for supporting abeam to be punched andmeans for centering the punches and dies forfbeamsof different sizes.

36. A punching machine including in combination a slidable punch `anddie carrying frame `adapted to receive a beam flange, an opposedpunch'and die carrying frame adapted to receive the other flange of thebeam, movable punch actuating devices mounted on said slidable frames,actuating levers pivoted upon said slidable frames andA to ysaid punchactuating devices, means controlled automatically by the size of thebeams for supporting a beam to be punched and means for centering thepunches and dies for beams of different sizes.

37. A punching machine including in combination a slidable punch and diecarrying frame adapted to receive a beam llange, an opposed punch anddie carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said slidable frames,actuating levers connected to said slidable frames, and to said punchactuating devices and means for varying the distance betvveen saidflange receiving devicesl for beams of different depth.

38. A punching machine including in combination a slidable punch and diecarrying frame adapted to receive a beam flange, an opposed punch anddie carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted lon said slidable frames,actuating levers pivoted upon said slidable frames and to said punchactuating devices and means for varying the distance between saidslidable frames for beams of dierent depth.

39. A punching machine including in .combination a slidable punch .finddie carrying frame adapted to receive a beam flange, an opposed punchand die carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said slidable frames,actuating levers connected to said slidable frames and to said punchactuating devices and commonactuating means for said levers and meansfor varying the distancev between said vflange receiving devices forbeams of different depth.

40. A punching machine including in combination a slidable punch and diecarrying frame adapted to receive a beam flange, an opposed punch anddie carrying` frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said slidable frames,actuating levers connected to said slidable frames and to said punchactuating devices and means for bringing the die members firmly againstthe backs of the flanges preparatory to punching.

41. A punching machine including in combination a slidable punch andydie carrying frame adapted to receive a beam flange, an opposed'l punchand die carrying frame adapted to receive the other flange of the beam,movable punch actuating devices mounted on said slidable frames. anactuating` lever pivoted to one of said sliding frames at a medial pointand connected at one of its ends tothe corresponding movable punchactuating device, an actuating lever pivoted at one of its ends to theother sliding frame and connected at a medial -pointlto thecorresponding movable punch actuating device and means for bringing the5*die l.members firmly .against the backs of, the flanges preparatorytOpunchinO. v

n l 42. L :A .punching machine includingin combination a slidable punchand die carrying frame adapted to receive a beamflange, `an opposedpunch .and die carrying frame adapted to .receive the other flange ofIthe beam, ,movable punch actuating ldevices mounted on saidslidable.frames,.actuating levers connected :to said slidable frames and to saidpunch actuating'devicesand common actuating means for said levers andmeans for bringing-the die .members firmly against the backs of theflanges.;l :preparatory to punching.- Y u 4 43. `punching 4machine.includingin l combination a 'slidable `punch anddie carrying frameadapted to receivev a beam lange,van opposed ,punch .andy die carryingvframe adapted to -receive the-other-flange of the beam, .movable-j Apunch actuating devices mounted on: said. slidableframes, actuatinglevers .connected yto said slidable frames and to said punch actuatingdevicesyand meansnor st lccessively travelingand stoppingv a beamrelatively to. the punching means and means for bringing the die.members firmlyagainst the backs ofthe fianges preparatorylto thesuccessive punchings.-

44. A punching ymachine including in combination a slidable .punchzand-.die 'carrying frame adapted to receive a beam flange, anoppo-sedpunch .and ,die carrying frame adapted to receivetheother `flange-.ofthe beam, movable punch actuating 'devices mounted von said slidableframes,. actuating levers pivoted upon said slidable:v frames and tosaidpunch actuatingdevices andimeans `for successively traveling andstopping ya beam relatively to the punchingfmeanspand for moving/themaway preparatory. tothe forward travelof the beam. Y i

.45.. A lpunching machine including y in combination a slidablepunchand. .die carrying` frame adapted to receive a beamflange, an,opposed punch and `die carryingl frame adapted to receive the other.flange .of the beam, movable punch actuating devices mounted on saidslidable frames, actuating levers connected tosaid slidable frames andto said punch actuating .devices and..means for successivelytraveling-and .stopping .a beamfrelatively tol the punchingm'eans andmeans for,V automatically .centering the flange receiving devices forbeams of di'i'erent-sizes vand means for bringing the .die membersfirmly against the Abacks yof the flanges preparatory to the successive.punchings. -v u `-46..A punching machine y including in combinationaslidable punch-and. die carrymenate mounted onvsaid slidableframes,.actuating levers connectedto said slidable frames and to-saidpunch actuating devicesand means for successively traveling and stopping-a beamy relatively to the punching means and means forautomatically.centering the flange receiving devices for beams ofdierentsizes and: for movingthem away preparatory .to theaforwarditravel .ofthe beam. u

-.47..A punching machine including f in combination a-vr slidablespunch. and. die carrying. framefadapted ltot receive. abeam flange, an.cpposed 'punchl and- .die earryingqframe adapted to receive the -otherflange ofthe beam, ymovable punch actuating fdevices mountedonsaid-.slidable\frames., actuating levers connected to said slidableframesiand to saidl punch actuating devices, means tor successivelytraveling. :and stopping a 4-beam relatively. to. the v punching..means, means controlled lby- .the-beam for centering .the

flange. .receiving .devices forv .beams of. difierent-sizes .and .meanstorbring-ing .the die members firmlyagains'tfthe backs of` the flangespreparatory to thesuccessive punchne's- 1 -4S.. A punching machineincluding in combination a-plurality ofsets of-punchesand diesfoiysimultaneously, .punching groups of holes in both` flanges-of AaY'beam..means for varying the distance between'the, punches ineachwgreup. p

.49. f-A-.punchinganachine including in combmationa. plurality yoit-setsof-.punches and .cl-ies for.simultaneously punchinggroups of holesinbothfla-ngesof a beam,.means for varying the distance between thepunchesin each;groupf..and means torvaryingthe distance.; ofthe holesfrom the. edges of. the flanges. u c

50. Apunching machine vincluding in combination a plurality of sets of'punches-and dies for .simultaneously punchingi groups of holes in both.fianges. .of a. beam, means for varying the distance. between. thepunchesin each-grou:p,.meansfor varying the distance .ofthe holes from.the edges of the .flanges and means for .varying the distanceI betweenthe setsbfpunchesand dies. for the Lrespective fianges. n r

.51; Apunchng machine includingincom- -bination a `pli'iralityof setsofpunchesand dies. for simultaneously punching groups .of

.heles inboth flanges of .a beam, meansdfor varying ,the distancebetween. the punches. .in each'I group y.andmeans forpressing .the .diecarrying. members. ifirmly'against the. backs of. the; flanges:preparatory tog' punching.

x52. A punching; machine `includ-ing.l incomassises bination a pluralityof sets of punches and dies for simultaneously punching groups of' holesin both flanges of a beam, means for varying the distance between thepunches in each group, means for varying the distance of the holes fromthe edges of the flanges and means for pressing the die carrying membersfirmly against the backs of the flanges preparatory to punching.

58. A punching machine including in combination a plurality of sets ofpunches and dies for simultaneously punching groups of holes in bothflanges of a beam, means for varying the distance between the punches ineach group, means for varying the distance of' the holes from the edgesof the flanges, means for varying the distance between the sets ofpunches and dies for the respective flanges and means for pressing thedie carrying members firmly against the backs of the flanges preparatoryto the punching.

54. A punching machine including in combination a plurality of sets ofpunches and dies for simultaneously punching groups of holes in bothflanges of a beam, means for varying the distance between the punches ineach group and means for successively traveling and stopping a beamrelatively to said punching devices to be punched thereby.

55. A punching machine including in combination a plurality of sets ofpunches and dies for simultaneously punching groups of holes in bothflanges of a beam, means for varying the distance between the punches ineach group, means for varying the distance of the holes from the edgesof the flanges and means for successively traveling and stopping a beamrelatively to said punching devices to be punched thereby.

56. A punching machine including in combination a plurality of sets ofpunches and dies for simultaneously punching groups of holes in bothflanges of a beam, means for varying the distance between the punches ineach group, means for varying the distance of the holes from the edgesof the flanges and means for varying the distance between the sets ofpunches and dies for the respective flanges and means for successivelytraveling and stopping a beam relatively to said punching devices to bepunched thereby.

57, A punching machine including in combination a plurality of sets ofpunches and dies for simultaneously punching groups of holes in bothflanges of a beam, means for varying the distance between the punches ineach group, means for pressing the die carrying members firmly againstthe backs of the flanges preparatory to punching and means forsuccessively traveling and stopping a beam relatively to said punchingdevices to be punched thereby.

58. A punching machine including in combination a plurality of sets ofpunches and dies for simultaneously punching groups of holes in bothflanges of a beam, means for varying the distance between the punches ineach group, means for varying the distance of the holes from the edgesof the flanges, means for pressing the die carrying members firmlyagainst the backs of the flanges preparatory to punching and means forsuccessively traveling and stopping a beam relatively to said punchingdevices to be punched thereby.

59. A punching machine including in combination a plurality of sets ofpunches and dies for simultaneously punching groups of holes in bothflanges of a beam, means for varying the distance between the punches ineach group, means for varying the distance of the holes from the edgesof the flanges, means for varying the distance between the sets ofpunches and dies for the respective flanges, means for pressing the diecarrying members firmly against the backs of the flanges preparatory topunching and means for successively traveling and stopping a beamrelatively to said punching devices to be punched thereby.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

LOUIS A. HAWTHORNE.

Witnesses:

JOHN D. MORGAN, EDW. V. VVENTs.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

